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authorJohn Millikin <john@john-millikin.com>2022-08-04 21:29:51 +0900
committerPaolo Bonzini <pbonzini@redhat.com>2022-10-10 09:23:16 +0200
commit298c31de9871b971b86356164633b9a5861af3db (patch)
tree1466e04e4ba722c36f56e587c114577280c97a79
parentf1d33f55c47dfdaf8daacd618588ad3ae4c452d1 (diff)
downloadfocaccia-qemu-298c31de9871b971b86356164633b9a5861af3db.tar.gz
focaccia-qemu-298c31de9871b971b86356164633b9a5861af3db.zip
scsi-disk: support setting CD-ROM block size via device options
SunOS expects CD-ROM devices to have a block size of 512, and will
fail to mount or install using QEMU's default block size of 2048.

When initializing the SCSI device, allow the `physical_block_size'
block device option to override the default block size.

Signed-off-by: John Millikin <john@john-millikin.com>
Message-Id: <20220804122950.1577012-1-john@john-millikin.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--hw/scsi/scsi-disk.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 399e1787ea..e493c28814 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2544,6 +2544,7 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp)
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
     AioContext *ctx;
     int ret;
+    uint32_t blocksize = 2048;
 
     if (!dev->conf.blk) {
         /* Anonymous BlockBackend for an empty drive. As we put it into
@@ -2553,9 +2554,13 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp)
         assert(ret == 0);
     }
 
+    if (dev->conf.physical_block_size != 0) {
+        blocksize = dev->conf.physical_block_size;
+    }
+
     ctx = blk_get_aio_context(dev->conf.blk);
     aio_context_acquire(ctx);
-    s->qdev.blocksize = 2048;
+    s->qdev.blocksize = blocksize;
     s->qdev.type = TYPE_ROM;
     s->features |= 1 << SCSI_DISK_F_REMOVABLE;
     if (!s->product) {